Answer:
a) 14x+6
b)12[tex]x^{2}[/tex]+9x
c)Perimeter= 118 Area=840
Step-by-step explanation:
a) 2*length+ 2*width---> 2(4x+3)+2(3x)=8x+6+6x= 14x+6
b)length* width---> 3x(4x+3)= 12[tex]x^{2}[/tex]+9x
c) Perimeter----> 14(8)+6= 118
Area--->12([tex]8^{2}[/tex])+9(8)=840
